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1. (WO2001004384) METHOD FOR PRODUCING MICRO STAMPING TOOLS

Pub. No.:    WO/2001/004384    International Application No.:    PCT/EP2000/005936
Publication Date: Fri Jan 19 00:59:59 CET 2001 International Filing Date: Wed Jun 28 01:59:59 CEST 2000
IPC: C25D 1/10
Applicants: INSTITUT FÜR MIKROTECHNIK MAINZ GMBH
EHRFELD, Wolfgang
MICHEL, Frank
Inventors: EHRFELD, Wolfgang
MICHEL, Frank
Title: METHOD FOR PRODUCING MICRO STAMPING TOOLS
Abstract:
The invention relates to a method for producing micro stamping tools which is designed to achieve a highly accurate reproductible match between said micro stamping tools, such as a force plate with stamps and a cutting plate, and to achieve a homogeneous distribution of die clearance. According to the first alternative for producing a cutting plate, a force place consisting of stamps with micro cutting structures in the sub-millimeter range is provided with a separating layer and the force plate is galvanically reproduced using a hard alloy. In another alternative for the production of a force plate with stamps, a cutting plate is used as an initial or master mould. According to the inventive method, a direct galvanic shaping process is performed, whereby reproduction errors and manufacturing tolerances are reduced substantially and a highly accurate match is achieved between the force and cutting plate, in addition to achieving a homogeneous distribution of die clearance. By using standardized microtechnical production methods, it is possible to produce large numbers of matching force and cutting plates in a simple, reproductible manner at low cost.